README.md

Ethereum Smart Contract Scheduler

A Node.js script to send 0 ETH to an Ethereum smart contract every 24 hours using ethers.js and node-cron.

Prerequisites

• Node.js installed on your machine
• Ethereum wallet with a private key
• Ethereum node URL (e.g., Infura or your own Ethereum node)
• Knowledge of the smart contract's address

Installation

1. Clone this repository or create a new directory for your project:

   mkdir eth-scheduler
   cd eth-scheduler
   
   

2. install the node modules:

   npm install
   
   

3. Create a .env file in your project directory and define your private key,polygonscan key and node URL as an environment variable:

   PRIVATE_KEY=YOUR_PRIVATE_KEY_HERE
   SCAN_API_KEY=YOUR_API_KEY
   NODE_URL=YOUR_NODE_URL
   CONTRACT=YOUR_CONTRACT_ADDRESS
   

Configuration

In the send-eth.js file, you need to configure the following:

• Fetch private key from environment variables using dotenv.
• Replace 'YOUR_PROVIDER_URL' with the URL of your Ethereum node (e.g., Infura or your own Ethereum node).
• Fill in the contract ABI for your specific smart contract.
• Set the correct contract address in contractAddress.

Usage

Run the script using Node.js:

node send-eth.js


# This script will send 0 ETH to the specified smart contract every 24 hours with a custom gasLimit and an optimal gasPrice.